(maint) Bump win32-security to at least 0.2.5

Versions of win32-security prior to 0.2.5 contained a bug on x64 due to
ulong being a 32-bit unsigned integer, whereas the OpenProcessToken method
takes a uintptr_t, which is 64-bit unsigned integer[1]

[1] https://github.com/djberg96/win32-security/commit/4af3625d61